相关实验视频

Updated: Jul 13, 2025

Use of MRI-ultrasound Fusion to Achieve Targeted Prostate Biopsy

Use of MRI-ultrasound Fusion to Achieve Targeted Prostate Biopsy

Published on: April 9, 2019

[前列腺超声波与MRI测量前列腺体积的准确性]

Jia-Li Hou¹, Wen-Liang Ma², Xiang Dong²

¹Nanjing Drum Tower Hospital Clinical College of Nanjing University of Chinese Medicine, Nanjing, Jiangsu 210008, China.

Zhonghua nan ke xue = National journal of andrology

|October 15, 2023

概括

磁共振成像 (MRI) 3D重建是测量前列腺体积 (PV) 的最准确方法. 通过子弹配方的直肠超声波 (TRUS) 是临床前列腺体积评估的实用替代方案.

科学领域:

泌尿器科泌尿器科泌尿器科泌尿器科
医疗成像医学成像
前列腺癌的诊断方法前列腺癌的诊断方法

背景情况:

精确的前列腺体积 (PV) 测量对于诊断和管理各种泌尿病状况至关重要.
目前像超声波和MRI这样的成像模式为PV估计提供了不同的方法.

研究的目的:

使用超声波和MRI测量不同前列腺体积测量技术的准确性与参考标准进行比较.
在临床实践中确定PV评估的最可靠方法.

主要方法:

从101个急性前列腺切除标本中测量了前列腺体积 (PV),使用排水方法作为参考.
术前的PV是使用腹超声波 (TAUS),直肠超声波 (TRUS) 和用圆形,子弹公式和3D重建的MRI计算的.
使用曼-惠特尼U测试,类内相关系数 (ICC) 和布兰德-阿尔特曼分析来评估准确性.

主要成果:

在样本和手术前PV测量之间没有发现显著差异.
核磁共振3D重建显示了最高的准确性 (ICC=0.978),其次是TRUS子弹公式 (ICC=0.862).
塔斯圆形公式显示了与样本体积的最低一致性 (ICC=0.745).

结论:

磁力共振成像3D重建是前列腺体积测量的最准确方法.
由于其高度适用性,TRUS子弹配方为临床应用提供了实用和可靠的替代方案.

关键词:

前列腺体积;超声波;磁共振成像;三维重建.

更多相关视频

A Cognitive Fusion-guided Prostate Biopsy Using Multiparametric Magnetic Resonance Imaging and Transrectal Ultrasound

A Cognitive Fusion-guided Prostate Biopsy Using Multiparametric Magnetic Resonance Imaging and Transrectal Ultrasound

Published on: March 21, 2025

Ultrasonography of the Adult Male Urinary Tract for Urinary Functional Testing

Ultrasonography of the Adult Male Urinary Tract for Urinary Functional Testing

Published on: August 14, 2019

相关概念视频

Imaging Studies IV: Magnetic Resonance Imaging

Imaging Studies IV: Magnetic Resonance Imaging

Introduction:Magnetic Resonance Imaging, or MRI, can include a specialized imaging technique of the urinary system known as Magnetic Resonance Urography (MRU). This radiation-free technique uses strong magnetic fields and radio waves to produce detailed images with the help of a computer. MRU is particularly effective for visualizing fluid-filled structures like the kidneys, ureters, and bladder.Applications of MRI in the Genitourinary SystemKidneys and Ureters: MRI detects tumors, cysts,...

Ultrasonography

Ultrasonography

Ultrasonography is an imaging technique that uses high-frequency sound waves to visualize the body's internal structures. It is a non-invasive and safe procedure that does not involve the use of ionizing radiation, making it widely used in various medical fields. Ultrasonography is used to study heart function, blood flow in the neck or extremities, certain conditions such as gallbladder disease, and fetal growth and development.
During an ultrasonography procedure, a handheld device called...

Imaging Studies II: Ultrasonography

Imaging Studies II: Ultrasonography

IntroductionUltrasonography, or renal ultrasound, is a noninvasive medical imaging technique that uses high-frequency sound waves to visualize the kidneys, ureters, bladder, and surrounding tissues.Indications for Urinary System UltrasonographyUrinary system ultrasonography is indicated in various clinical scenarios, such as:Kidney Stones (Urolithiasis): To detect and monitor the size and presence of kidney or urinary tract stones.Hydronephrosis: To assess the dilation of the renal pelvis and...

Magnetic Resonance Imaging

Magnetic Resonance Imaging

Magnetic resonance imaging (MRI) is a noninvasive medical imaging technique based on a phenomenon of nuclear physics discovered in the 1930s, in which matter exposed to magnetic fields and radio waves was found to emit radio signals. In 1970, a physician and researcher named Raymond Damadian noticed that malignant (cancerous) tissue gave off different signals than normal body tissue. He applied for a patent for the first MRI scanning device in clinical use by the early 1980s. The early MRI...